That’s the best thing about the ocean, the fact that most of it is still unexplored!

There are just a few areas of the sea that are too dangerous for us to explore without spending a lot of money on some pretty high tech equipment, and I don’t have time for that!

Recently a group of scientists was exploring a giant hole in the Great Barrier Reef, but they made a shocking discovery.

The hole was 125 miles away from Daydream Island, in northeast Australia. The hole has only ever been described by geologists in the past.

There is very little known about this hole, but the original exploration of the whole suggested that coral bleaching on the reef, the hole has a mass of healthy coral colonies!

Johnny Gaskell is a marine biologist from the Whitsundays, Australia, and he shared the stunning image of the hole on his Instagram.

He said:

“This blue hole has previously been described by geologists who suggested it could be even older than the famous Great Blue Hole, in Belize.

“Its location is in one of the least explored parts Great Barrier Reef, over 200km from Daydream Island. ‘To get there we had to travel overnight for 10 hours and time the tides perfectly. Was well worth it.”